Stop mechanism.



No. 799,015. PATENTED SEPT. 5, 1905. J. RODRIGUEZ. STOP MECHANISM.

APPLICATION FILED 1713.25, 1905.

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Attorneys P'ATENT OFFICE.

JACINTO RODRIGUEZ, OF CIENFUEGOS, CUBA.

STOP MECHANISM.

Specification of Letters Patent.

Iatetzlod Sept. 5, 1905.

Original application filed September 28, 1904, Serial No. 226,381. Divided and this application filed March 25, 1905. Serial No. 252,102.

To all whmn it may concern:

Be it known that I, JACINTO RODRIGUEZ Y FONOLL, a citizen of the Island of Cuba, residing at Boullon No. 31, (Jienfuegos, Island of Cuba, have invented a new and useful Stop Mechanism for Presses, of which the following is a specification.

This invention relates to stop mechanisms for machinery, and is particularly adapted for use in connection'with certain classes of printing and numbering machines wherein it is desirable to stop the operation of the machine after each complete movement and hold the parts in a predetermined or normal position in readiness for a second operation.

The principal object of the invention is to provide a mechanism wherein a notched disk serves to control the position of a clutch or similar device for looking a normally loose driving member to its shaft and to provide means operable at the completion of each rotative movement of the disk for unlocking said driving member and stopping the movement of the parts.

WVith these and other objects in view, as Will more fully hereinafter appear, the invention consists in certain novel features of construction and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size, and minor details of the structure may be made without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings, Figure 1 is a perspective view of a stop mechanism constructed -in accordance with the invention. Fig. 2 is a front elevation of the same, partly in section.

Similar numerals of reference are employed to indicate corresponding parts throughout both the figures of the drawings.

The device forming the subject of the present invention is adapted more especially for use in connection with printing and numberingmachines of that general class forming the subject of an application for Letters Patent filed by me on September 28, 1904:, Serial No.

226,381, and of which the present application is a division.

In the drawings, 1 designates a suitable frame provided with bearings for the reception of a shaft 22. At one end of the shaft is a disk 38, in the peripheryof which is formed a notch 39 for the reception of a pin or antifriction-roller 40. This roller is carried by an arm tl, that projects from the verticallyguided slide 4E2, mounted on the frame, said slide being normally depressed by a spring 43 in order to hold the pin or antifrictionroller in the notch 39, and thus prevent rotative movement of the disk 38 and shaft 22.

hen the apparatus is to be operated-that is to say, when motion is to be imparted to the shaft 22 a lever 4:3 is raised. This lever is pivoted to a bracket 44: and is connected at an intermediate point to the arm 4C1. The spring 4:3 is arranged within a suitable casing 45, that is supported by the frame, and at the upper end of the casing is a screw 45, by which the stress of the spring may be adjusted. At the lower end of the spring is arranged a suitable block for engaging the upper end of the slide as.

At one side of the frame are arranged bearings for the support of a shaft 4E6, carrying a loose pulley 47 for the reception of a suitable driving-belt. The shaft further carries a disk 48, that is rigidly secured to the shaft, and the adjacent faces of the pulley and disk are pro vided with clutch-faces. Pivoted to the upper portion of one of the bearings is a lever 51, that is provided with a roller 52 for engaging the face of the loose pulley, and the opposite end of said lever is connected to the lower end of the slide as, so that when said slide is raised the rollers will engage the face of the pulley and force the same over until its clutch-face engages the clutch-face of the disk 48, and thus locks the pulley to the shaft.

At one side of the machine is a standard 55, carrying a short shaft 56, to which is secured a toothed segment 57, intermeshing with a pinion 58 on the end of the shaft 22. To the shaft 56 is also secured a rocker-arm 58, that is connected by a link 60 to a crank 61 on shaft L6. The crank and gearing are so proportioned that one complete rotation of the shaft 46 will rotate shaft 22 first in one direction and then in the opposite direction in order that movement may be properly transmitted from said shaft to the machine to be driven.

It will be observed that in order to start the operation lever 43 must be raised by hand until the roller 40 is clear of the notch 39. This movement is transmitted, through the slide 42, to the clutching devices, and the loose pulley 4:7 is locked to the shaft, movement being transmitted from said shaft through the crank and gearing to the shaft 22, so that the operator may then release the lever L3 and permit the roller to descend into contact with the periphery of the disk 38. The roller will remain in engagement With the periphery of the disk until the latter has completed its rotation, at Which time the notch Will again pass under the roller, and the latter Will be forced doWn by gravity assisted by the spring 43, and the clutch will be loosened and the parts locked from further movement.

Having thus described the invention. What is claimed is e 1. The combination ith a driving-shaft, of a normally loose operating member, means for clutching the same to the shaft, a slide connected to said clutching means, a spring operating on the slide and tending to release the clutch, a manually-operable lever connected to the slide, a driven shaft, a notched disk carried thereby, a pin carried by the lever and adapted to said notch, and means for transmitting movement from the driving to the driven shaft.

2. The combination with a driving-shaft, of a normally loose operating member, means for clutching the same to the shaft, a clutch-operating lever, a guided slide connected to said lever, a spring-casing, an adjustable spring arranged therein and bearing upon the slide, a driven shaft, a notched disk carried by the driven shaft, a manually-operable lever connected to the slide and having a pin engaging the disk, a pinion carried by the driven shaft, a pivotally-mounted segment having teeth intermeshing With the gear, a crank carried by the driving-shaft, and means connecting the crank to the segment.

In testimony that I claim the foregoing as my oWn I have hereto aflixed my signature in the presence of two Witnesses.

J ACINTO RODRIGUEZ.

lVitnesses: V

VICENTE PLAG, FLORENTINO MAmfio, 

